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| version 1.113, 2001/03/16 12:46:35 | version 1.129, 2001/03/27 17:12:23 |
|---|---|
| Line 1 | Line 1 |
| /* | /** @file |
| Parser | Parser: executor part of request class. |
| Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) | Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) |
| Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf) | Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf) |
| $Id$ | $Id$ |
| */ | */ |
| #include "pa_array.h" | #include "pa_config_includes.h" |
| #include "code.h" | #include "code.h" |
| #include "pa_array.h" | |
| #include "pa_request.h" | #include "pa_request.h" |
| #include "pa_vstring.h" | #include "pa_vstring.h" |
| #include "pa_vhash.h" | #include "pa_vhash.h" |
| Line 20 | Line 23 |
| #include "pa_vtable.h" | #include "pa_vtable.h" |
| #include <stdio.h> | #include <stdio.h> |
| #include <string.h> | |
| #define PUSH(value) stack.push(value) | #define PUSH(value) stack.push(value) |
| #define POP() static_cast<Value *>(stack.pop()) | #define POP() static_cast<Value *>(stack.pop()) |
| Line 55 char *opcode_name[]={ | Line 57 char *opcode_name[]={ |
| "IS" | "IS" |
| }; | }; |
| void va_log_printf(const char *fmt,va_list args) { | void va_log_printf(Pool& pool, const char *fmt,va_list args) { |
| vfprintf(stderr, fmt, args); | // return; |
| char buf[MAX_STRING]; | |
| vsnprintf(buf, MAX_STRING, fmt, args); | |
| SAPI::log(pool, "%s", buf); | |
| } | } |
| void log_printf(const char *fmt, ...) { | void log_printf(Pool& pool, const char *fmt, ...) { |
| // TODO: куда-нибудь пристроить | |
| va_list args; | va_list args; |
| va_start(args,fmt); | va_start(args,fmt); |
| va_log_printf(fmt,args); | va_log_printf(pool,fmt,args); |
| va_end(args); | va_end(args); |
| } | } |
| void dump(int level, const Array& ops) { | void dump(Pool& pool, int level, const Array& ops) { |
| if(0){ | if(0){ |
| int size=ops.size(); | int size=ops.size(); |
| //log_printf("size=%d\n", size); | //log_printf(pool, "size=%d\n", size); |
| for(int i=0; i<size; i++) { | for(int i=0; i<size; i++) { |
| Operation op; | Operation op; |
| op.cast=ops.quick_get(i); | op.cast=ops.quick_get(i); |
| log_printf("%8X\n", op.cast); | log_printf(pool, "%8X\n", op.cast); |
| } | } |
| } | } |
| int size=ops.size(); | int size=ops.size(); |
| //log_printf("size=%d\n", size); | //log_printf(pool, "size=%d\n", size); |
| for(int i=0; i<size; i++) { | for(int i=0; i<size; i++) { |
| Operation op; | Operation op; |
| op.cast=ops.quick_get(i); | op.cast=ops.quick_get(i); |
| log_printf("%*s%s", level*4, "", opcode_name[op.code]); | log_printf(pool, "%*s%s", level*4, "", opcode_name[op.code]); |
| if(op.code==OP_VALUE || op.code==OP_STRING__WRITE) { | if(op.code==OP_VALUE || op.code==OP_STRING__WRITE) { |
| Value *value=static_cast<Value *>(ops.quick_get(++i)); | Value *value=static_cast<Value *>(ops.quick_get(++i)); |
| log_printf(" \"%s\" %s", value->get_string()->cstr(), value->type()); | log_printf(pool, " \"%s\" %s", value->get_string()->cstr(), value->type()); |
| } | } |
| log_printf("\n"); | //\log_printf(pool, "\n"); |
| if(op.code==OP_CURLY_CODE__STORE_PARAM || op.code==OP_EXPR_CODE__STORE_PARAM) { | if(op.code==OP_CURLY_CODE__STORE_PARAM || op.code==OP_EXPR_CODE__STORE_PARAM) { |
| const Array *local_ops=reinterpret_cast<const Array *>(ops.quick_get(++i)); | const Array *local_ops=reinterpret_cast<const Array *>(ops.quick_get(++i)); |
| dump(level+1, *local_ops); | dump(pool, level+1, *local_ops); |
| } | } |
| } | } |
| } | } |
| void Request::execute(const Array& ops) { | void Request::execute(const Array& ops) { |
| if(1) { | if(1) { |
| log_printf("source----------------------------\n"); | log_printf(pool(), "source----------------------------\n"); |
| dump(0, ops); | dump(pool(), 0, ops); |
| log_printf("execution-------------------------\n"); | log_printf(pool(), "execution-------------------------\n"); |
| } | } |
| int size=ops.size(); | int size=ops.size(); |
| //log_printf("size=%d\n", size); | //log_printf(pool(), "size=%d\n", size); |
| for(int i=0; i<size; i++) { | for(int i=0; i<size; i++) { |
| Operation op; | Operation op; |
| op.cast=ops.quick_get(i); | op.cast=ops.quick_get(i); |
| log_printf("%d:%s", stack.top_index()+1, opcode_name[op.code]); | log_printf(pool(), "%d:%s", stack.top_index()+1, opcode_name[op.code]); |
| switch(op.code) { | switch(op.code) { |
| // param in next instruction | // param in next instruction |
| case OP_VALUE: | case OP_VALUE: |
| { | { |
| Value *value=static_cast<Value *>(ops.quick_get(++i)); | Value *value=static_cast<Value *>(ops.quick_get(++i)); |
| log_printf(" \"%s\" %s", value->get_string()->cstr(), value->type()); | log_printf(pool(), " \"%s\" %s", value->get_string()->cstr(), value->type()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| Line 127 void Request::execute(const Array& ops) | Line 131 void Request::execute(const Array& ops) |
| VMethodFrame *frame=static_cast<VMethodFrame *>(stack.top_value()); | VMethodFrame *frame=static_cast<VMethodFrame *>(stack.top_value()); |
| // code | // code |
| const Array *local_ops=reinterpret_cast<const Array *>(ops.quick_get(++i)); | const Array *local_ops=reinterpret_cast<const Array *>(ops.quick_get(++i)); |
| log_printf(" (%d)\n", local_ops->size()); | log_printf(pool(), " (%d)\n", local_ops->size()); |
| dump(1, *local_ops); | dump(pool(), 1, *local_ops); |
| // when they evaluate expression parameter, | // when they evaluate expression parameter, |
| // the object expression result | // the object expression result |
| // does not need to be written into calling frame | // does not need to be written into calling frame |
| // it must go into any expressions using that parameter | // it must go into any expressions using that parameter |
| // hence, zeroing junction.wcontext being created | // hence, zeroing junction.wcontext being created |
| // later, in .process would test that field | // later, in .process we would test that field |
| // in decision "which wwrapper to use" | // in decision "which wwrapper to use" |
| Junction& j=*NEW Junction(pool(), | Junction& j=*NEW Junction(pool(), |
| *self, 0, 0, | *self, 0, 0, |
| Line 153 void Request::execute(const Array& ops) | Line 157 void Request::execute(const Array& ops) |
| wcontext->set_somebody_entered_some_class(); | wcontext->set_somebody_entered_some_class(); |
| const String& name=POP_NAME(); | const String& name=POP_NAME(); |
| VClass *vclass=static_cast<VClass *>(classes().get(name)); | Value *value=static_cast<Value *>(classes().get(name)); |
| if(!vclass) | if(!value) |
| THROW(0,0, | THROW(0,0, |
| &name, | &name, |
| ": undefined class"); | ": undefined class"); |
| PUSH(vclass); | PUSH(value); |
| break; | break; |
| } | } |
| Line 200 void Request::execute(const Array& ops) | Line 204 void Request::execute(const Array& ops) |
| Value *value=POP(); | Value *value=POP(); |
| const String& name=POP_NAME(); | const String& name=POP_NAME(); |
| Value *ncontext=POP(); | Value *ncontext=POP(); |
| ncontext->put_element(name, value->get_expr_result()); | ncontext->put_element(name, value->as_expr_result()); |
| value->set_name(name); | value->set_name(name); |
| break; | break; |
| } | } |
| Line 213 void Request::execute(const Array& ops) | Line 217 void Request::execute(const Array& ops) |
| case OP_WRITE_EXPR_RESULT: | case OP_WRITE_EXPR_RESULT: |
| { | { |
| Value *value=POP(); | Value *value=POP(); |
| write_expr_result(*value->get_expr_result()); | write_expr_result(*value->as_expr_result()); |
| break; | break; |
| } | } |
| case OP_STRING__WRITE: | case OP_STRING__WRITE: |
| { | { |
| VString *vstring=static_cast<VString *>(ops.quick_get(++i)); | VString *vstring=static_cast<VString *>(ops.quick_get(++i)); |
| log_printf(" \"%s\"", vstring->string().cstr()); | log_printf(pool(), " \"%s\"", vstring->string().cstr()); |
| write(vstring->string()); | write_no_lang(vstring->string()); |
| break; | break; |
| } | } |
| Line 325 void Request::execute(const Array& ops) | Line 329 void Request::execute(const Array& ops) |
| case OP_CALL: | case OP_CALL: |
| { | { |
| log_printf("->\n"); | log_printf(pool(), "->\n"); |
| VMethodFrame *frame=static_cast<VMethodFrame *>(POP()); | VMethodFrame *frame=static_cast<VMethodFrame *>(POP()); |
| frame->fill_unspecified_params(); | frame->fill_unspecified_params(); |
| PUSH(self); | PUSH(self); |
| Line 343 void Request::execute(const Array& ops) | Line 347 void Request::execute(const Array& ops) |
| wcontext->constructing() && // constructing? | wcontext->constructing() && // constructing? |
| wcontext->somebody_entered_some_class()) { // ^class:method[..]? | wcontext->somebody_entered_some_class()) { // ^class:method[..]? |
| // yes, this is a constructor call | // yes, this is a constructor call |
| if(called_class->name()==TABLE_CLASS_NAME) | // some stateless_object derivates with constructors |
| if(called_class==table_class) | |
| self=NEW VTable(pool()); | self=NEW VTable(pool()); |
| else if(called_class->name()==ENV_CLASS_NAME) | else // stateful object |
| self=NEW VEnv(pool()); | |
| else | |
| self=NEW VObject(pool(), *called_class); | self=NEW VObject(pool(), *called_class); |
| frame->write(*self, | frame->write(*self, |
| String::Untaint_lang::NO // not used, always an object, not string | String::UL_NO // not used, always an object, not string |
| ); | ); |
| } else | } else |
| self=&frame->junction.self; // no, static or simple dynamic call | self=&frame->junction.self; // no, static or simple dynamic call |
| Line 381 void Request::execute(const Array& ops) | Line 384 void Request::execute(const Array& ops) |
| self=static_cast<VAliased *>(POP()); | self=static_cast<VAliased *>(POP()); |
| PUSH(value); | PUSH(value); |
| log_printf("<-returned"); | log_printf(pool(), "<-returned"); |
| break; | break; |
| } | } |
| Line 389 void Request::execute(const Array& ops) | Line 392 void Request::execute(const Array& ops) |
| case OP_NEG: | case OP_NEG: |
| { | { |
| Value *operand=POP(); | Value *operand=POP(); |
| Value *value=NEW VDouble(pool(), -operand->get_double()); | Value *value=NEW VDouble(pool(), -operand->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_INV: | case OP_INV: |
| { | { |
| Value *operand=POP(); | Value *operand=POP(); |
| Value *value=NEW VDouble(pool(), ~(int)operand->get_double()); | Value *value=NEW VDouble(pool(), ~(int)operand->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_NOT: | case OP_NOT: |
| { | { |
| Value *operand=POP(); | Value *operand=POP(); |
| Value *value=NEW VBool(pool(), !operand->get_bool()); | Value *value=NEW VBool(pool(), !operand->as_bool()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_DEF: | case OP_DEF: |
| { | { |
| Value *operand=POP(); | Value *operand=POP(); |
| Value *value=NEW VBool(pool(), operand->get_defined()); | Value *value=NEW VBool(pool(), operand->is_defined()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| Line 418 void Request::execute(const Array& ops) | Line 421 void Request::execute(const Array& ops) |
| { | { |
| Value *operand=POP(); | Value *operand=POP(); |
| const char *path=operand->as_string().cstr(); | const char *path=operand->as_string().cstr(); |
| Value *value=NEW VBool(pool(), strcmp(path, info.uri)<=0); | Value *value=NEW VBool(pool(), info.uri && strcmp(path, info.uri)<=0); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_FEXISTS: | case OP_FEXISTS: |
| { | { |
| Value *operand=POP(); | Value *operand=POP(); |
| Value *value=NEW VBool(pool(), true/*TODO*/); | Value *value=NEW VBool(pool(), |
| file_readable(absolute(operand->as_string()))); | |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| Line 434 void Request::execute(const Array& ops) | Line 438 void Request::execute(const Array& ops) |
| case OP_SUB: | case OP_SUB: |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VDouble(pool(), a->get_double() - b->get_double()); | Value *value=NEW VDouble(pool(), a->as_double() - b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_ADD: | case OP_ADD: |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VDouble(pool(), a->get_double() + b->get_double()); | Value *value=NEW VDouble(pool(), a->as_double() + b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_MUL: | case OP_MUL: |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VDouble(pool(), a->get_double() * b->get_double()); | Value *value=NEW VDouble(pool(), a->as_double() * b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_DIV: | case OP_DIV: |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VDouble(pool(), a->get_double() / b->get_double()); | Value *value=NEW VDouble(pool(), a->as_double() / b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| Line 463 void Request::execute(const Array& ops) | Line 467 void Request::execute(const Array& ops) |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VDouble(pool(), | Value *value=NEW VDouble(pool(), |
| (int)a->get_double() % | (int)a->as_double() % |
| (int)b->get_double()); | (int)b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| Line 472 void Request::execute(const Array& ops) | Line 476 void Request::execute(const Array& ops) |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VDouble(pool(), | Value *value=NEW VDouble(pool(), |
| (int)a->get_double() & | (int)a->as_double() & |
| (int)b->get_double()); | (int)b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| Line 481 void Request::execute(const Array& ops) | Line 485 void Request::execute(const Array& ops) |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VDouble(pool(), | Value *value=NEW VDouble(pool(), |
| (int)a->get_double() | | (int)a->as_double() | |
| (int)b->get_double()); | (int)b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| Line 490 void Request::execute(const Array& ops) | Line 494 void Request::execute(const Array& ops) |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VDouble(pool(), | Value *value=NEW VDouble(pool(), |
| (int)a->get_double() ^ | (int)a->as_double() ^ |
| (int)b->get_double()); | (int)b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_LOG_AND: | case OP_LOG_AND: |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VBool(pool(), a->get_bool() && b->get_bool()); | Value *value=NEW VBool(pool(), a->as_bool() && b->as_bool()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_LOG_OR: | case OP_LOG_OR: |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VBool(pool(), a->get_bool() || b->get_bool()); | Value *value=NEW VBool(pool(), a->as_bool() || b->as_bool()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_LOG_XOR: | case OP_LOG_XOR: |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VBool(pool(), a->get_bool() ^ b->get_bool()); | Value *value=NEW VBool(pool(), a->as_bool() ^ b->as_bool()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_NUM_LT: | case OP_NUM_LT: |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VBool(pool(), a->get_double() < b->get_double()); | Value *value=NEW VBool(pool(), a->as_double() < b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_NUM_GT: | case OP_NUM_GT: |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VBool(pool(), a->get_double() > b->get_double()); | Value *value=NEW VBool(pool(), a->as_double() > b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_NUM_LE: | case OP_NUM_LE: |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VBool(pool(), a->get_double() <= b->get_double()); | Value *value=NEW VBool(pool(), a->as_double() <= b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_NUM_GE: | case OP_NUM_GE: |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VBool(pool(), a->get_double() >= b->get_double()); | Value *value=NEW VBool(pool(), a->as_double() >= b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_NUM_EQ: | case OP_NUM_EQ: |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VBool(pool(), a->get_double() == b->get_double()); | Value *value=NEW VBool(pool(), a->as_double() == b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| case OP_NUM_NE: | case OP_NUM_NE: |
| { | { |
| Value *b=POP(); Value *a=POP(); | Value *b=POP(); Value *a=POP(); |
| Value *value=NEW VBool(pool(), a->get_double() != b->get_double()); | Value *value=NEW VBool(pool(), a->as_double() != b->as_double()); |
| PUSH(value); | PUSH(value); |
| break; | break; |
| } | } |
| Line 613 void Request::execute(const Array& ops) | Line 617 void Request::execute(const Array& ops) |
| 0, | 0, |
| "unhandled '%s' opcode", opcode_name[op.code]); | "unhandled '%s' opcode", opcode_name[op.code]); |
| } | } |
| log_printf("\n"); | //\log_printf(pool(), "\n"); |
| } | } |
| } | } |
| Line 632 Value *Request::get_element() { | Line 636 Value *Request::get_element() { |
| return value; | return value; |
| } | } |
| /** | |
| intercept_string: | |
| - true: | |
| they want result=string value, | |
| possible object result goes to wcontext | |
| - false: | |
| they want any result[string|object] | |
| nothing goes to wcontext. | |
| used in @c (expression) params evaluation | |
| */ | |
| Value& Request::process(Value& value, const String *name, bool intercept_string) { | Value& Request::process(Value& value, const String *name, bool intercept_string) { |
| // intercept_string: | |
| // true: | |
| // they want result=string value, | |
| // possible object result goes to wcontext | |
| // false: | |
| // they want any result[string|object] | |
| // nothing goes to wcontext. | |
| // used in (expression) params evaluation | |
| Value *result; | Value *result; |
| Junction *junction=value.get_junction(); | Junction *junction=value.get_junction(); |
| if(junction && junction->code) { // is it a code-junction? | if(junction && junction->code) { // is it a code-junction? |
| // process it | // process it |
| log_printf("ja->\n"); | log_printf(pool(), "ja->\n"); |
| PUSH(self); | PUSH(self); |
| PUSH(root); | PUSH(root); |
| PUSH(rcontext); | PUSH(rcontext); |
| Line 684 Value& Request::process(Value& value, co | Line 689 Value& Request::process(Value& value, co |
| root=POP(); | root=POP(); |
| self=static_cast<VAliased *>(POP()); | self=static_cast<VAliased *>(POP()); |
| log_printf("<-ja returned"); | log_printf(pool(), "<-ja returned"); |
| } else | } else |
| result=&value; | result=&value; |
| Line 693 Value& Request::process(Value& value, co | Line 698 Value& Request::process(Value& value, co |
| return *result; | return *result; |
| } | } |
| char *Request::execute_method(Value& aself, const Method& method, bool return_cstr) { | const String *Request::execute_method(Value& aself, const Method& method, bool return_cstr) { |
| PUSH(self); | PUSH(self); |
| PUSH(root); | PUSH(root); |
| PUSH(rcontext); | PUSH(rcontext); |
| Line 707 char *Request::execute_method(Value& ase | Line 712 char *Request::execute_method(Value& ase |
| execute(*method.parser_code); | execute(*method.parser_code); |
| // result | // result |
| char *result; | const String *result; |
| if(return_cstr) | if(return_cstr) |
| result=wcontext->get_string()->cstr(); // chars | result=&wcontext->as_string(); |
| else | else |
| result=0; // ignore result | result=0; // ignore result |
| Line 722 char *Request::execute_method(Value& ase | Line 727 char *Request::execute_method(Value& ase |
| return result; | return result; |
| } | } |
| char *Request::execute_method(Value& aself, | const String *Request::execute_method(Value& aself, |
| const String& method_name, bool return_cstr) { | const String& method_name, bool return_cstr) { |
| if(Value *value=aself.get_element(method_name)) | if(Value *value=aself.get_element(method_name)) |
| if(Junction *junction=value->get_junction()) | if(Junction *junction=value->get_junction()) |